DOWNLOAD Sharp CD-E250 (serv.man10) Service Manual ↓ Size: 48.08 KB | Pages: 4 in PDF or view online for FREE

Model
CD-E250 (serv.man10)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
48.08 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Test mode
File
cd-e250-sm10.pdf
Date
PREV: Sharp CD-E250 (serv.man9) Service Manual

Sharp CD-E250 (serv.man10) Service Manual ▷ View online

– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
This test mode is intended to check whether all the main
unit buttons can be detected.  Accordingly, in this test
mode, it is checked whether the "ON/STAND BY" button
was pressed after all the buttons shown below were pressed.
If the result is OK, OK is displayed.  If any one of keys was
not pressed, an error is displayed.  In both cases of OK
termination or error termination, the mode is shifted to the
standby mode if the "ON/STAND BY" button is pressed
subsequently.
All models using this type of microcomputer are not always
provided with the same buttons.  Since the buttons used are
different depending on models, types of buttons to be used
are determined by whether SURROUND, and an electric lid
are available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.
Accordingly, it is checked whether all buttons have been
pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE
OR NOT),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
This test mode is intended to check whether all the main
unit buttons can be detected.  Accordingly, in this test
mode, it is checked whether the "ON/STAND BY" button
was pressed after all the buttons shown below were pressed.
If the result is OK, OK is displayed.  If any one of keys was
not pressed, an error is displayed.  In both cases of OK
termination or error termination, the mode is shifted to the
standby mode if the "ON/STAND BY" button is pressed
subsequently.
All models using this type of microcomputer are not always
provided with the same buttons.  Since the buttons used are
different depending on models, types of buttons to be used
are determined by whether SURROUND, and an electric lid
are available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.
Accordingly, it is checked whether all buttons have been
pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE
OR NOT),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
This test mode is intended to check whether all the main
unit buttons can be detected.  Accordingly, in this test
mode, it is checked whether the "ON/STAND BY" button
was pressed after all the buttons shown below were pressed.
If the result is OK, OK is displayed.  If any one of keys was
not pressed, an error is displayed.  In both cases of OK
termination or error termination, the mode is shifted to the
standby mode if the "ON/STAND BY" button is pressed
subsequently.
All models using this type of microcomputer are not always
provided with the same buttons.  Since the buttons used are
different depending on models, types of buttons to be used
are determined by whether SURROUND, and an electric lid
are available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.
Accordingly, it is checked whether all buttons have been
pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE
OR NOT),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
This test mode is intended to check whether all the main
unit buttons can be detected.  Accordingly, in this test
mode, it is checked whether the "ON/STAND BY" button
was pressed after all the buttons shown below were pressed.
If the result is OK, OK is displayed.  If any one of keys was
not pressed, an error is displayed.  In both cases of OK
termination or error termination, the mode is shifted to the
standby mode if the "ON/STAND BY" button is pressed
subsequently.
All models using this type of microcomputer are not always
provided with the same buttons.  Since the buttons used are
different depending on models, types of buttons to be used
are determined by whether SURROUND, and an electric lid
are available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.
Accordingly, it is checked whether all buttons have been
pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE
OR NOT),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
Display

Sharp CD-E250 (serv.man10) Service Manual ▷ Download

  • DOWNLOAD Sharp CD-E250 (serv.man10) Service Manual ↓ Size: 48.08 KB | Pages: 4 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp CD-E250 (serv.man10) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp CD-E250 (serv.man10) System. Information contained in Sharp CD-E250 (serv.man10) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.

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